Flashlight



R. M. EATON.

FLASHLIGHT.

APPLICATION FILED MAR. 22, I920.

Patented Dec. 6, 1921.

UNITED STATES RICHARD MAX EATON, OF NIAGARA FALLS, NEW YORK.

ELASHLIG-HT.

Specification of Letters Patent.

Patented Dec. 6, 1921.

Application filed March 22, 1920. Serial No. 867,775.

To all whom it may concern:

Be it known that I, RICHARD MAX Enron, a citizen of the United States, residing at Niagara Falls, in the county of Niagara and State of New York, have invented certain new and useful Improvements in Flash lights, of which the following is a full, clear, and exact description.

This invention has as its object to provide a single unitary fastening device for search light caps and strip contacts whereby both are rigidly held in operative engagement to the insulating barrel or body of a portable self contained light of the usual type.

This object is attained by the novel con struction and arrangement of parts herein after described and shown in the accompanying drawings, forming a material part of this specification, and in which Figure 1 is a side elevational view of a conventional type of search light, parts heing'broken away to disclose the invention.

Fig. 2 is an enlarged fragmentary longitudinal sectional view of the same.

Fig. 3 is a vertical sectional view of the tubular rivet in detail.

Referring to the drawings in detail, the numeral 10 designates the tubular barrel or body of the light, the same being usually made of hard rubber or like insulating material and is adapted to be held in the hand of the operator.

At the front is attached an enlarged bulbulous head 01' adapter 11, having a screwthreaded cap 12 carrying the lens 1 1-, the electric bulb (not shown) being within the head while the battery cells or energizing elements are contained as usual within the barrel.

A switch, generally designated by the numeral 15, is secured to the exterior of the barrel and used to control the current connections between the battery and lamp bulb.

At the end of the barrel, opposite the head,

is a ferrule 18 having an inturned annular flange 19 abutting against the end of the barrel.

Engaged by screw threads formed on the exterior of the ferrule 18 is a cap 20 having a corrugated edge 21 expanded to form an internal recess receptive of the battery spring 22, the outer end of the spring being held in the recess against the imperforate outer wall 23 of the cap.

A metallic conductor 25, having an out turned end 26 adjacent the flange 19, is secured within the barrel 10 by a tubular rivet 28, the body of which passes through the wall of the barrel 10 and alsothe ferrule 18, the inner flanged end 29 of the rivet holdin the conductor firmly against the barrel while the outer flanged end 30 of the rivet is setin a counter-sunk opening in bottom of the threads of the ferrule and below the level of the thread, preventing turning or otherwise moving from its position.

It is to be noted that the flange 30 is formed undulatingly to conform to the profile of the thread and oflers no impediment or obstruction to the cap 20 in screwing or unscrewing the same, and obviously several of the tubular rivets may be used in engaging the ferrule to the barrel as considered desirable.

Thus the rivets perform double function and in addition to its lightness and strength, may be readily applied forming a securing means of great practical utility.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is

1. In a device of the class described the combination with a hollow cylinder and a threaded ferrule at one end thereof, said ferrule having a flanged portion covering the material of the cylinder, of a contact strip in said cylinder said strip having an angular outturned end set in a recess in the wall of the cylinder in engagement with the flange of the ferrule, and a tubular rivet having an inner headadapted to clamp said strip against the interior of said cylinder, the outer head of said rivet being disposed in a countersunk opening formed'in the exterior of said ferrule and below the level of the thread thereof.

2. In a device of the class described, the combination with a non-conducting tube and a metallic ferrule, said ferrule having a screw-threaded exterior, a conductor strip in said tube in electrical engagement with said ferrule, a tubular rivet passing through said strip, tube and ferrule, said rivet having an inner head by which said strip is clamped to the interior of said tube, and an undulatingly formed outer head seated in the bottom of the screw threads of said ferrule so as to offer no impediment to parts engaged by said screw-threads.

This specification signed and witnessed this 11th day of March, 1920.

RICHARD MAX EATON.

WVitnesses PURL S. VVHIsTLER, THOMAS BRENNEN. 

